Editing List of operating systems (section)

====Upper 3000 series====
* [[CDC SCOPE|SCOPE]] (Supervisory Control Of Program Execution)<ref>{{cite book
 |     title = 3600 Computer System SCOPE/Reference Manual
 |        id = 60053300
 |      date = September 1964
 |       url = http://bitsavers.org/pdf/cdc/3x00/48bit/scope/60053300_SCOPE_Ref_Sep64.pdf
 | publisher = Control Data Corporation
 }}
</ref>
** Drum SCOPE<ref>{{cite book
 |     title = 3600 3800 Computer Systems Drum SCOPE/MSIO Operating Guide
 |        id = 60059200B
 |      date = July 1967
 |       url = http://bitsavers.org/pdf/cdc/3x00/48bit/scope/60059200B_Drum_SCOPE_Ref_Jul67.pdf
 | publisher = Control Data Corporation
 }}
</ref>